//
// Created by wze-zero on 2024/7/8 008.
//
#include <iostream>

using namespace std;

int main() {
    double weight, height, bmi;
    cin >> weight;
    cin >> height;
    bmi = weight / (height * height);
    if (bmi > 24.9) {
        cout << "偏胖" << endl;
    } else if (bmi >= 20.9) {
        cout << "适中" << endl;
    } else if (bmi >= 18.5) {
        cout << "苗条" << endl;
    } else {
        cout << "偏瘦" << endl;
    }
    return 0;
}